Bacteriological Studies Relating to Handwashing

Abstract
Several bacteriological tests designed to evaluate the role of bar soaps (without antibacterial additives) in the spread of bacteria have demonstrated the following: bacteria are not transferred from person to person through the use of bar soaps; bar soaps do not support the growth of bacteria under usage conditions; bar soaps are inherently antibacterial by their physical-chemical nature; the level of bacteria that may occur on bar soap even under extreme usage conditions (heavy usage, poorly designed nondrainable soap dishes, etc.) does not constitute a health hazard.